elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Numerical Optimization of Plate-Line Design for Enhanced Wake-Vortex Decay

Stephan, Anton and Schrall, Jürgen and Holzäpfel, Frank (2017) Numerical Optimization of Plate-Line Design for Enhanced Wake-Vortex Decay. Journal of Aircraft, 54 (3), pp. 995-1010. American Institute of Aeronautics and Astronautics (AIAA). DOI: 10.2514/1.C033973 ISSN 0021-8669

[img] PDF
12MB

Official URL: http://dx.doi.org/10.2514/1.C033973

Abstract

The design of plate lines as a ground-mounted device for wake-vortex decay enhancement is investigated in this work. The most important design parameters, the aspect ratio and plate distance, are analyzed for the wake vortices generated by two aircraft: the A340 as well as the A380. Large-eddy-simulations are used to simulate the wake-vortex evolution in ground proximity for different parameter combinations. Fully rolled-up wake vortices are initialized using a Lamb–Oseen vortex model resembling the characteristics of the two aircraft. With the stochastic so-called kriging method, estimates of the performance and respective probabilistic envelopes are given for the design parameter region, spanned by the large-eddy-simulation. The vortex circulation averaged over the rapid decay phase is taken as the objective function. The large-eddy-simulation parameters are selected in the vicinity of the expected optimum. An optimal parameter combination can be localized in the A340 case, as well as in the A380 case. For both cases, statistical relevance is provided. Moreover, it can be deduced that the optimal parameters for the A380 are also well suited for smaller aircraft like an A340.

Item URL in elib:https://elib.dlr.de/113795/
Document Type:Article
Title:Numerical Optimization of Plate-Line Design for Enhanced Wake-Vortex Decay
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Stephan, AntonDLR, IPAUNSPECIFIED
Schrall, JürgenDLR, IPAUNSPECIFIED
Holzäpfel, FrankDLR, IPAhttps://orcid.org/0000-0003-3182-1832
Date:2017
Journal or Publication Title:Journal of Aircraft
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:54
DOI :10.2514/1.C033973
Page Range:pp. 995-1010
Publisher:American Institute of Aeronautics and Astronautics (AIAA)
ISSN:0021-8669
Status:Published
Keywords:Wake-vortex decay, A340, A380, large-eddy-simulation
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:air traffic management and operations
DLR - Research area:Aeronautics
DLR - Program:L AO - Air Traffic Management and Operation
DLR - Research theme (Project):L - Climate, Weather and Environment
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Transport Meteorology
Deposited By: Ziegele, Brigitte
Deposited On:24 Aug 2017 12:08
Last Modified:31 Jul 2019 20:11

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.